/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @format
 * @flow
 */

import { Text, View, SafeAreaView, Button, Platform, StyleSheet } from 'react-native';
import * as React from 'react';
import RNTesterDocumentationURL from './RNTesterDocumentationURL';
import { type RNTesterTheme } from './RNTesterTheme';

const HeaderIOS = ({
  onBack,
  title,
  documentationURL,
  theme,
}: {
  onBack?: any;
  title: string;
  documentationURL?: string;
  theme: RNTesterTheme;
}) => {
  return (
    <SafeAreaView>
      <View style={[styles.header, { backgroundColor: theme.SystemBackgroundColor }]}>
        <View style={styles.headerCenter}>
          <Text style={{ ...styles.title, ...{ color: theme.LabelColor } }}>{title}</Text>
          {documentationURL && <RNTesterDocumentationURL documentationURL={documentationURL} />}
        </View>
        {onBack != null && (
          <View>
            <Button
              title="Back"
              onPress={onBack}
              color={Platform.select({
                ios: theme.LinkColor,
                default: undefined,
              })}
            />
          </View>
        )}
      </View>
    </SafeAreaView>
  );
};

export default function RNTTitleBar({
  onBack,
  title,
  documentationURL,
  theme,
}: {
  onBack?: () => void;
  title: string;
  documentationURL?: string;
  theme: RNTesterTheme;
}) {
  return (
    <HeaderIOS documentationURL={documentationURL} title={title} onBack={onBack} theme={theme} />
  );
}

const styles = StyleSheet.create({
  headerContainer: {
    borderBottomWidth: StyleSheet.hairlineWidth,
  },
  header: {
    height: 40,
    flexDirection: 'row',
  },
  headerCenter: {
    flex: 1,
    position: 'absolute',
    top: 7,
    left: 0,
    right: 0,
    alignItems: 'center',
  },
  title: {
    fontSize: 19,
    fontWeight: '600',
    textAlign: 'center',
  },
  toolbar: {
    height: 56,
  },
  toolbarCenter: {
    flex: 1,
    position: 'absolute',
    top: 12,
    left: 0,
    right: 0,
    alignItems: 'center',
  },
});
